Home / 165,643.20-248,466.96-47,318.40

Finding the Fourth Proportional to 165,643.20, 248,466.96 and 47,318.40

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Solution

The fourth proportional to 165,643.20, 248,466.96 and 47,318.40 is: 70,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,643.20 : 248,466.96 = 47,318.40 : x
  2. Step 2: Convert to fraction form
    165,643.20/248,466.96 = 47,318.40/x
  3. Step 3: Cross multiply
    165,643.20x = 248,466.96 × 47,318.40
  4. Step 4: Simplify right side
    165,643.20x = 11,757,059,000.06
  5. Step 5: Solve for x
    x = 11,757,059,000.06/165,643.20
  6. Step 6: Final answer
    x = 70,978.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.